Question
If 'S' is the prime number 5, then find the fourth proportion of (S + 3), (S - 1) and (S + 7).
Solution
'S' = 5
So, the numbers are 8, 4 and 12.
Let fourth proportion be 'm'.
So, 8m = 4 × 12
Or, 8m = 48
Or, 'm' = 6
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